Update dependencies, remove macOS x64 support

[simolus3]

This updates dependencies and removes support for x64 macOS platforms for Kotlin/native (we still support Intel macs on the JVM).

Product visibility

This removes support for x64 macOS platforms and simulators (iOS, watchOS and macOS), which is a breaking change. This change is motivated by platform changes:

• Kotlin is deprecating these targets, and will remove them in a future release. (actually, they've paused the deprecation and will revisit this after WWDC)
• AndroidX multiplatform has already removed support for them (androidx/androidx@7cb9a4c), and we use AndroidX dependencies for SQLite interfaces. So keeping them around means we can't update dependencies.

In practice, I don't think this is a severe removal:

• Compose Multiplatform apps are based on the JVM for Desktop targets, so they continue to work.
• On iOS, watchOS and tvOS, only simulators are affected.

So I'm not sure there's much of a use case for a native macOS target, apart from maybe running tests?

[stevensJourney]

This feels like the logical move to take given the support is being dropped by our dependencies.

cc @LucDeCaf for context with documenting supported platforms.